CN211460471U

CN211460471U - Aiming device for implanting humerus intramedullary nail

Info

Publication number: CN211460471U
Application number: CN201920842834.5U
Authority: CN
Inventors: 付中国; 梁文魁; 徐恩海
Original assignee: Suzhou Bota Medical Technology Co ltd
Current assignee: Suzhou Bota Medical Technology Co ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-09-11
Anticipated expiration: 2029-06-05

Abstract

The utility model discloses a sight is implanted to humeral intramedullary nail, including sight body and humeral head, the sight body is located humeral head's broken line one side, the inner wall of sight body be equipped with the two-way ARC structure of humeral head assorted, awl thread groove one and awl thread groove two have been seted up respectively to the top of sight body, one side that the sight body is located awl thread groove one and awl thread groove two all is equipped with the hole respectively, the top of sight body be equipped with awl thread groove one assorted sleeve one, the bottom of sleeve one be equipped with awl thread groove one assorted external screw thread one, the top of sight body be equipped with awl thread groove two assorted sleeve two. Has the advantages that: the humeral head is completely separated from dislocation, accurate reduction of the humeral head is required no matter steel plate fixation or intramedullary nail fixation is carried out, intramedullary nail fixation is the best supplement, and intramedullary nail fixing belts are used for moving inwards by force arms, so that the stability is very reasonable.

Description

Aiming device for implanting humerus intramedullary nail

Technical Field

The utility model relates to a technical field is planted to the humerus intramedullary nail, particularly, relates to a sight is implanted to humerus intramedullary nail.

Background

When the humerus intramedullary nail is implanted, the humerus image needs to be reset in advance, and drilling and reaming are carried out to establish an intramedullary nail implantation channel. When drilling, the position and direction of the drill bit need to be accurate to ensure the implantation to be smooth and correct. In current surgical procedures, incision is mostly required, the visual field is exposed, and the needle insertion point is determined by the experience of the doctor. The disadvantages of the method include the following aspects: firstly, the method comprises the following steps: need to be cut open; II, secondly: the position of the needle inserting point is not accurate; thirdly, the method comprises the following steps: the direction is not easy to be grasped. The operation quality is poor, the recovery is affected, even the operation fails, and secondary damage is brought to the patient.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a humerus intramedullary nail implantation sighting device, which aims at overcoming the technical problems existing in the prior art.

Therefore, the utility model discloses a specific technical scheme as follows:

according to one aspect of the utility model, a humerus intramedullary nail implantation sighting device is provided.

A sighting device for humeral intramedullary nail implantation comprises a sighting device body and a humeral head, wherein the sighting device body is located on one side of a fracture line of the humeral head, a two-way arc surface structure matched with the humeral head is arranged on the inner wall of the sighting device body, a first conical threaded groove and a second conical threaded groove are respectively formed in the top end of the sighting device body, holes are respectively formed in one sides of the first conical threaded groove and the second conical threaded groove of the sighting device body, a first sleeve matched with the first conical threaded groove is arranged at the top end of the sighting device body, a first external thread matched with the first conical threaded groove is arranged at the bottom end of the first sleeve, a second sleeve matched with the second conical threaded groove is arranged at the top end of the sighting device body, a second external thread matched with the second fifty conical threaded groove is arranged at the bottom end of the second sleeve, and an included angle between the first sleeve and the second sleeve is within a range of fifty degrees to five degrees, a target Kirschner wire matched with the sleeve I is arranged in the sleeve I, the bottom end of the target Kirschner wire penetrates through the conical thread groove and extends into the humeral head, a reference Kirschner wire matched with the sleeve II is arranged in the sleeve II, and the bottom end of the reference Kirschner wire penetrates through the conical thread groove II and extends into the humeral head.

Furthermore, the first sleeve and the second sleeve are respectively provided with an anti-skidding rubber ring, and the first sleeve and the second sleeve have the function of a handle.

According to another aspect of the present invention, a method for using the humeral intramedullary nail implantation aimer is provided.

The use method of the humerus intramedullary nail implantation sighting device comprises the following steps:

cutting to expose the visual field, finding out the free humeral head which falls off, and screwing the sleeve II into the conical thread groove II of the sighting device body in advance;

the second sleeve is held by hand, the inner side surface of the aimer body is attached to the humeral head joint surface of the humeral head, and the rear end part of the aimer body is close to the edge of the humeral joint surface facing the greater tubercle direction;

installing the first sleeve, and inserting the target Kirschner wire along the direction of the first sleeve, so that the needle inserting point and the direction on the humeral head are determined;

removing the sighting device body, namely removing the first sleeve and removing the sighting device body along the hole beside the target Kirschner wire;

resetting, if the humerus shaft is fractured, reaming can be carried out along the direction of the Kirschner wire at the moment;

if the humerus head falls off and shifts, the humerus head can be pried by holding the Kirschner wire to reset the humerus head;

then, a hollow drill is used for drilling along the Kirschner wire so as to implant the intramedullary nail;

the humeral intramedullary nail implantation is completed.

Further, the use method of the humeral intramedullary nail implantation aimer further comprises the following steps:

before operation, the diameter data of the humeral head is measured in the image to select the proper type of aiming device. The diameter of the cambered surface on the inner side of the sighting device is from 30mm to 50mm, the diameter is in a specification every 2mm, and the angles and the distances of the two holes are changed along with the increase of the specification of the actual diameter.

The utility model has the advantages that: when the comminuted fracture of the humerus head occurs, the humerus head is completely separated from dislocation, the accurate reposition of the humerus head is required no matter whether the fixation of the steel plate or the intramedullary nail is carried out, the intramedullary nail fixation is the best supplement, the intramedullary nail fixing belt is used for moving the force arm inwards, and the humerus head fixation device has the advantage of reasonable stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is one of the schematic structural views of a humeral intramedullary nail implantation aimer according to an embodiment of the present invention;

fig. 2 is a second schematic structural view of the humeral intramedullary nail implantation aimer according to the embodiment of the present invention;

fig. 3 is one of the schematic structural diagrams of the aimer body in the humeral intramedullary nail implantation aimer according to the embodiment of the present invention;

fig. 4 is a second schematic structural view of the aimer body of the humeral intramedullary nail implantation aimer according to the embodiment of the present invention;

fig. 5 is a flow chart of a humeral intramedullary nail implantation aimer according to an embodiment of the present invention.

In the figure:

1. a sight body; 2. a humeral head; 3. a fracture line; 4. a bidirectional cambered surface structure; 5. a first conical thread groove; 6. a conical thread groove II; 7. a hole; 8. a first sleeve; 9. the first external thread; 10. a second sleeve; 11. a second external thread; 12. a target k-wire; 13. reference is made to k-wires.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to an embodiment of the present invention, there is provided a humeral intramedullary nail implantation aimer.

In the first embodiment, the first step is,

as shown in fig. 1-5, the humeral intramedullary nail implantation aimer according to an embodiment of the present invention includes an aimer body 1 and a humeral head 2, the aimer body 1 is located on one side of a fracture line 3 of the humeral head 2, a bidirectional arc structure 4 matched with the humeral head 2 is disposed on an inner wall of the aimer body 1, a first taper thread groove 5 and a second taper thread groove 6 are respectively disposed on a top end of the aimer body 1, holes 7 are respectively disposed on one sides of the first taper thread groove 5 and the second taper thread groove 6 of the aimer body 1, a first sleeve 8 matched with the first taper thread groove 5 is disposed on a top end of the aimer body 1, a first external thread 9 matched with the first taper thread groove 5 is disposed on a bottom end of the first sleeve 8, a second sleeve 10 matched with the second taper thread groove 6 is disposed on a top end of the aimer body 1, the bottom end of the second sleeve 10 is provided with a second external thread 11 matched with the second conical thread groove 6, an included angle between the first sleeve 8 and the second sleeve 10 is between fifty degrees and fifty-five degrees, a target Kirschner wire 12 matched with the first sleeve 8 is arranged in the first sleeve 8, the bottom end of the target Kirschner wire 12 penetrates through the first conical thread groove 5 and extends into the humeral head 2, a reference Kirschner wire 13 matched with the second sleeve 10 is arranged in the second sleeve 10, and the bottom end of the reference Kirschner wire 13 penetrates through the second conical thread groove 6 and extends into the humeral head 2.

By means of the technical scheme, when the comminuted fracture of the humerus head occurs, the humerus head is completely separated from dislocation, the accurate reduction of the humerus head is required no matter the fixation of the steel plate or the fixation of the intramedullary nail, the fixation of the intramedullary nail is the best supplement, the force arm is moved inwards by the fixing band of the intramedullary nail, and the humerus head has the advantage of reasonable stability.

In the second embodiment, the first embodiment of the method,

as shown in fig. 1-a, the first sleeve 8 and the second sleeve 10 are respectively provided with an anti-slip rubber ring, and the first sleeve 8 and the second sleeve 10 also function as a handle. The anti-skid rubber ring is convenient for medical workers to take and improves the taking stability.

For the convenience of understanding the above technical solutions of the present invention, the following detailed description will be made on the flows of the above solutions of the present invention with reference to the accompanying drawings, specifically, as follows

According to the embodiment of the utility model, still provide a humerus intramedullary nail implantation sight.

As shown in fig. 1 to 5, the humeral intramedullary nail implantation aimer and the use method thereof include the following steps:

step S101, cutting open to expose the visual field, finding out a free humeral head which falls off, and screwing the sleeve II 10 into the conical thread groove II 6 of the sighting device body 1 in advance;

step S103, the second sleeve 10 is held by hand, the inner side surface of the aimer body 1 is attached to the humeral head articular surface of the humeral head 2, and the rear end part of the aimer body 1 is close to the edge of the humeral head articular surface facing the greater tubercle direction;

step S105, installing the first sleeve 8, and inserting the target Kirschner wire 12 along the direction of the first sleeve 8, so that the needle inserting point and the direction on the humeral head 2 are determined;

step S107, removing the sighting device body 1, firstly removing the first sleeve 8, and removing the sighting device body 1 along the hole 7 beside the target Kirschner wire 12;

step S109, resetting, and if the humeral shaft is fractured, reaming along the direction of the Kirschner wire at the moment;

step S111, if the humerus head falls off and shifts, the humerus head can be pried by holding the Kirschner wire to reset the humerus head;

step S113, then, drilling along the Kirschner wire by using a hollow drill so as to implant an intramedullary nail;

step S115, the humeral intramedullary nail implantation is completed.

In the third embodiment, the first step is that,

as shown in fig. 1 to 5, the method for using the humeral intramedullary nail implantation aimer further comprises the following steps:

In summary, with the above technical solution of the present invention, when the comminuted fracture of the humerus head occurs, the humerus head is completely separated from the dislocation, and the accurate reposition of the humerus head is required no matter whether the fixation of the steel plate or the intramedullary nail is performed, while the fixation of the intramedullary nail is the best supplement, and the intramedullary nail fixing band is used to force the arm of force to move inwards, which has the advantage of reasonable stability.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The humerus intramedullary nail implantation sighting device is characterized by comprising a sighting device body (1) and a humerus head (2), wherein the sighting device body (1) is located on one side of a fracture line (3) of the humerus head (2), a two-way cambered surface structure (4) matched with the humerus head (2) is arranged on the inner wall of the sighting device body (1), a first conical threaded groove (5) and a second conical threaded groove (6) are respectively formed in the top end of the sighting device body (1), holes (7) are respectively formed in one sides of the first conical threaded groove (5) and the second conical threaded groove (6) of the sighting device body (1), a first sleeve (8) matched with the first conical threaded groove (5) is arranged at the top end of the sighting device body (1), a first external thread (9) matched with the first conical threaded groove (5) is arranged at the bottom end of the first sleeve (8), the top of sight body (1) be equipped with awl thread groove two (6) assorted sleeve two (10), the bottom of sleeve two (10) be equipped with awl thread groove two (6) assorted external screw thread two (11), sleeve one (8) with contained angle between sleeve two (10) is in fifty degrees to fifty-five degrees, be equipped with in sleeve one (8) rather than assorted target kirschner wire (12), the bottom of target kirschner wire (12) is run through awl thread groove one (5) and extend to in bone (2), be equipped with rather than assorted reference kirschner wire (13) in sleeve two (10), the bottom of referring to kirschner wire (13) is run through awl thread groove two (6) and extend to in humeral head (2).

2. The humeral intramedullary nail implantation aimer of claim 1, wherein the first sleeve (8) and the second sleeve (10) are provided with anti-slip rubber rings, respectively, and the first sleeve (8) and the second sleeve (10) also function as handles.